I was potentially interested in a dwarf boa species, but a quick email to Vin Russo, who breeds a lot of them, and that was quickly put to rest. Apparently, many of the dwarf species do not share their personality with their cousins, BCI's. I was told not to expect a sweetheart like Behira, but the opposite in most cases.
Temperament and eating F/T are my two biggest requirements. So those were out.
As an FYI I keep Tarahumaras, which are the smallest of the dwarf localities. Mine were nippy as babies but as adults they are just as mellow and easy to handle as my other boas.
If you simply want a pet ask the breeders for a chill male neonate.